室内毫米波3D-MIMO无线信道参数提取与多径簇特性研究
Research on Indoor Millimeter Wave 3D-MIMO Wireless Channel Parameter Extraction and Multipath Cluster Characteristics
- 电子学报 2022年50卷第11期 页码：2698-2706
- 作者机构：
1.重庆邮电大学通信与信息工程学院,重庆 400065
2.东南大学毫米波国家重点实验室,江苏南京 210096
3.中国电子科技集团公司第二十九研究所电子信息控制重点实验室,四川成都 610036
- 作者简介：
[ "廖 希 女，1988年出生于四川省绵阳市，现为重庆邮电大学副教授、硕士生导师，主要研究方向为涡旋电磁波及其应用、无线信道电波传播、多径参数提取与信道建模等.E-mail: liaoxi@cqupt.edu.cn" ]
[ "黄晨曦 女，1996年出生于陕西省渭南市，现为重庆邮电大学硕士研究生，主要研究方向为毫米波3D-MIMO信道建模与多径参数提取算法.E-mail: S190101033@stu.cqupt.edu.cn" ]
[ "王 洋 男，1986年出生于重庆市，现为重庆邮电大学副教授，博士生导师，研究方向为天线与电波传播、涡旋电磁波、雷达信号处理、微波相位调制等.E-mail: wangyang@cqupt.edu.cn" ]
[ "车延庭 男，1987年出生于黑龙省伊春市，现为电子信息控制重点实验室高级工程师，研究方向为无源侦察、阵列信号处理等.E-mail: cheyanting_heb@126.com" ]
- 基金信息：国家自然科学基金(62171071);重庆市自然科学基金资助项目(cstc2021jcyj-msxmX0634)
DOI：10.12263/DZXB.20211490
中图分类号： TN928收稿：2021-11-05，
修回：2022-02-22，
纸质出版：2022-11-25
- 稿件说明：
移动端阅览
廖希,黄晨曦,王洋等.室内毫米波3D-MIMO无线信道参数提取与多径簇特性研究[J].电子学报,2022,50(11):2698-2706.
LIAO Xi,HUANG Chen-xi,WANG Yang,et al.Research on Indoor Millimeter Wave 3D-MIMO Wireless Channel Parameter Extraction and Multipath Cluster Characteristics[J].ACTA ELECTRONICA SINICA,2022,50(11):2698-2706.
廖希,黄晨曦,王洋等.室内毫米波3D-MIMO无线信道参数提取与多径簇特性研究[J].电子学报,2022,50(11):2698-2706. DOI： 10.12263/DZXB.20211490.
LIAO Xi,HUANG Chen-xi,WANG Yang,et al.Research on Indoor Millimeter Wave 3D-MIMO Wireless Channel Parameter Extraction and Multipath Cluster Characteristics[J].ACTA ELECTRONICA SINICA,2022,50(11):2698-2706. DOI： 10.12263/DZXB.20211490.
摘要
针对室内多用户场景毫米波三维多输入多输出（Three Dimensional Multiple Input Multiple Output，3D-MIMO）无线信道测量不足、多径簇特性描述不完善的问题，本文基于测量研究室内毫米波3D-MIMO无线信道的参数提取算法和多径簇特性.首先，对室内多径传播条件下部署三个用户，开展了基于虚拟阵列的不同天线阵列大小的无线信道频域测量；然后，针对频域空间交替广义期望最大化（Frequency Domain Space-Alternating Generalized Expectation Maximization，FD-SAGE）算法不能描述3D-MIMO信道垂直域角度特性，以及时延分辨率不足的问题，改进算法增加了垂直维度，并且利用参数优先级迭代方法，提升毫米波3D-MIMO信道的时延域参数提取性能.结果表明改进算法既能准确地提取出毫米波3D-MIMO信道参数，又能实现随阵列大小增加而增加的多径簇内时延分辨率.
Abstract
Aiming at the problems of insufficient measurement of three dimensional multiple input multiple output(3D-MIMO) wireless channel and incomplete description of multipath cluster characteristics in indoor multi-user scenarios
parameter extraction algorithm and multipath cluster characteristics of indoor millimeter wave 3D-MIMO wireless channel are studied based on measurement. Three users are deployed in indoor multipath propagation
and wireless channel frequency domain measurements of different antenna array sizes based on virtual array are carried out. The problem that the frequency domain alternating generalized expectation maximization(FD-SAGE) algorithm cannot describe the vertical angular characteristics of 3D-MIMO channel and the delay resolution is insufficient. Improved algorithm adds the vertical dimension
and uses the iterative method of parameter priority to improve the delay domain performance of parameter extraction in millimeter wave 3D-MIMO channel. The results show that the improved algorithm can not only extract millimeter wave 3D-MIMO channel parameters accurately
but also achieve the time-delay resolution in multipath cluster with the increase of array size.
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references
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